At the initial stage of 5 G network construction

the base station is confi gured with open-loop power control + two-end distribution scheme by default. However

with the gradual increase of the number of users after 5 G commercial promotion

the inter cell interference will be more and more serious

which will affect the user’s perception. In this study

closed loop power control + PRB three-stage resource allocation method is proposed

that is

adjacent cells through PCI module 3 are different

the allocation of PRB start position is different

reduce the interference of adjacent cells

improve user perception. The three-stage strategy of closed-loop power control + PRB can signifi cantly improve the performance verifi cation of small package

medium package and large package

which is suitable for reference and promotion.